Sash-fastener.



G. KAWASAKI.

SASH FASTENEIL APPLICATION FILED JULY 8, 19M

1 1 87,33 1 Pa tented June 13, 1916.

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ct lzzs f forng GORO KAWASAKI, OF CHICAGO, ILLINOIS.

SASI-I-FASTENER.

Specification of Letters Patent.

Patented June13,1916.

Application filed July 8, 1914. Serial No. 849,665.

To all whom it may concern Be it known that I, Gono KAWASAKI, a subject of the Emperor of Japan, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Sash-Fasteners, of which the following is a specification.

My invention relates to improvements in window sash fastening devices, and has for its object the production of a window sash fastening mechanism which will be of improved construction and eflicient in use.

A further object is the production of a sash fastening mechanism which will be auto: matic in its operation and adapted to cooperate with a pair of sashes in any position to which the latter may be adjusted to prevent relative movement of the same toward each other.

Figure 1 is a front elevation of a window construction embodying my invention, Fig. 2 is a section through the sash frame showing the sashes in side elevation, and Fig. 3 is an enlarged detail section taken on line 33 of Fig. 1.

The preferred form of construction as illustrated in the drawings comprises a window frame 10 in which are mounted for ver tical sliding inner and outer sashes A and B. Each of said sashes A and B comprises an outer rectangular frame 11 the lateral edges of which engage with the sash grooves formed in the frame 10. Arranged in said frame'll is'a rectangular inner frame 12 in which the window pane 13 is mounted. The frame 12 is formed of four metallic bars, round or cylindrical in form, which, are detachably secured together by screws 14.

Said screws 14 pass transversely through therespective ends of the lateral bars of said frame, engaging in the respective ends of the upper and lower bars of said frame, as clearly shown in Fig. 1. The inner sides of said frame bars are grooved for the reception of the edges of the window pane 13,

the construction being such, that mounting or dismounting of the window ane may be readily and easily effected by removal of screws 14, it being clear that, upon removal of said screws, said frame bars will be disconnected and separable. The frame 12 rests in a metallic rectangular seat 15 which is secured rigidly in the recess 16 of frame 11, as clearly shown in Figs. 1 and 3.

Locking of the sashes A and B against movement toward each other is normally effected by means of a spring strip or band 29 which is shiftably mounted in a groove formed at the inner side of the bottom and one of the vertical bar portions of frame 15. The lower end of the member 29 is fixed at 31, to the sash frame 11, the opposite end thereof being twisted through substantially ninety degrees and projected exteriorly at the rearward side of sash'll adjacent to the upper edge of the latter, as clearly shown in Fig. 2. Said eXteriorly projecting end of member 29 is adapted normally to engage with spaced stops or teeth 32 which are formed in the adjacent side of the frame 11 of sash B, it being clear that when said end of said member v29 is in engagement with any one of the stops 32, the sashes A and B will be locked against relative movement toward each other. r

Provided at the lower end of frame 11 of sash A, at the'inner side of the latter is a handle 33 which is mounted in a bracket 34 secured to said sash frame. The ends of the handle 33 engage elongated slots 35 formed in the bracket 34 so as to permit of slight relative vertical movement of said handle. Projecting forwardly from said handle or toward the sash is an arm 36, theouter end of said arm 'passing through an opening 36 formed in the adjacent portion of the sash frame 11, as clearly shown in Fig. 3. The arrangement is such that, upon upward movement of handle 33, the forward end of arm 36 will be rocked downwardly. Said end of said arm engages against the upper side of the adjacent portion of the spring strip 29 so that upon downward movement or rocking of said end of said arm, as just mentioned, the strip 29 will be buckled thereby so as to effect retraction of the upper operative end of said strip to a position out of engagement with the stops 32. With this arrangement then, it will be seen, that the upper end of strip 29 will serve normally to lock the window sashes against opening movement but, in the event of the handle 33 being engaged and pulled upwardly as in opening the sash A, the

arm 36 will be rocked to cause buckling of the strip 29 and hence retraction of the upper end thereof to unlock said window sashes. Upon release of the handle 33, the resiliency of the strip 29 will cause the same to again expand to its normal condition with its upper end projecting into operative proximity with stops 32. Thus, it will be seen, that the Window sashes Will be locked except upon applying pressure to the handle of the lower sash to open the same.

WVhile I have illustrated and described the preferred form of construction for carrying my lnvention into effect, this is the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

V 1. In a sash fastener, the combination of a window frame; a sash slidably mounted in said frame; means for releasably locking said sash against sliding in said frame in one direction, said means comprisinga flexible element arranged in said sash having one end projecting 'exteriorly;stops adapted for engagement by said end of said flexible element, when extended; a handle for said sash having slight relative movement; and an operative connection between said handle and said flexible element whereby said element may be buckled to retract said end thereof, substantially as described.

2. In a sash fastener, the combination of a window frame; a sash slidably mounted in said frame; means for releasably locking said sash against sliding in said frame in one direction, said means comprising a flexible element arranged in said sash having one end projecting exteriorly;stops adapted for engagement by said end of said flexible element, when extended; a handle for said sash having slight relative movement; and an arm on said handle adapted, upon relative movement of said handle, to be rocked into engagement with said flexible element to buckle the same so as to retract said end thereof, substantially as described.

3. In a sash fastener, the combination of a window frame; a sash slidably mounted in said frame; means for releasably locking said sash against sliding in said frame in one direction, said means comprising an elongated flexible strip mounted in said sash extending along the bottom and one of the lateral edges of'said sash, the lower end of said strip being fixed to said sash, the opposite end thereof projecting exteriorly; spaced stops adapted for engagement by said end of said flexible element, when extended; and means adapted for engagement with said strip intermediate the ends thereof for buckling the same to retract the upper end thereof, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

GORO KAWVASAKI.

Witnesses:

JosHUA R. H. Po'r'rs, HELEN F. LILLIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

